Albert LeffingwellAlbert Leffingwell (1845-1916) was a medical doctor and former president of the American Humane Association. Known for his advocacy for ethical treatment of animals, Leffingwell's work focused on the ethical dilemmas in scientific experimentation on oth humans and animals. His moderate stance on vivisection called for regulation and oversight rather than complete abolition. Leffingwell's writings continue to be regarded as valuable contributions to the discourse on the ethical implications of scientific research. Read More Read Less